Cable-stayed bridge cable-beam anchorage structure and cable-stayed bridge

Abstract

The present invention belongs to the technical field of bridges, and specifically relates to a cable-stayed bridge cable-beam anchoring structure and a cable-stayed bridge. The cable-stayed bridge cable-beam anchoring structure comprises a fixing frame, on which a protective mechanism is arranged, and in which a protective sleeve, an auxiliary reinforcement assembly and a protective assembly are arranged. The cable-stayed bridge cable-beam anchoring structure and the cable-stayed bridge can monitor the stress of each group of cable-stayed steel cables and the cable-beam anchoring structure through the use of the protective mechanism and the auxiliary reinforcement assembly, so as to facilitate the subsequent maintenance of the cable-beam anchoring structure. At the same time, when the protective sleeve slides relative to the column anchor box in a direction away from the positioning rod, the protective sleeve will pull the steel rope to move, and then the steel rope will pull the clamping block to move. Under the limiting action of the truncated cone groove, the two groups of clamping blocks move in the direction of the limiting wheel, so that the two groups of clamping blocks can approach each other, thereby improving the fixing effect of the protective sleeve, and then improving the anchoring effect of the protective sleeve.

Description

Technical Field

[0001] The invention relates to the technical field of bridges, and in particular to a cable-stayed bridge cable-beam anchoring structure and a cable-stayed bridge. Background Art

[0002] A cable-stayed bridge, also known as a cable-stabilized bridge, is a type of bridge in which the main beam is directly pulled onto the cable tower by many cables. It is a structural system composed of pressure-bearing towers, tensioned cables and bending-bearing beams. It has the characteristics of large spanning capacity and beautiful shape, and is the main type of large-span bridges.

[0003] At present, in the prior art, the three-dimensional coordinate values ​​of the cable-beam positioning points and the cable-beam anchor points provided in the design drawings, as well as parameters such as the angle of the cable-stayed plate, the longitudinal slope of the main beam and the transverse slope of the bridge deck are calculated, and then the position of the cable-beam anchoring structure is calculated, and then the cable-stayed steel cable is fixed in the protective casing, and then the protective casing is passed through the bridge tower, and then the protective casing is fixed by the cable-beam anchoring structure and then the concrete platform is poured to complete the tensioning of the bridge. Since the technical requirements are very strict and the construction is complicated during the construction of the cable-stayed bridge, it is not easy to monitor the stress of each group of cable-stayed steel cables and the cable-beam anchoring structure after the construction of the cable-stayed bridge is completed. Therefore, during the long-term use of the cable-stayed bridge, when the cable-beam anchoring structure and the cable-stayed steel cables become loose, the stability of the entire cable-stayed bridge will be affected. In view of this, the present invention proposes a cable-beam anchoring structure of a cable-stayed bridge and a cable-stayed bridge. Summary of the invention

[0004] The main purpose of the present invention is to provide a cable-stayed bridge cable-beam anchoring structure and a cable-stayed bridge, which can solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A cable-stayed bridge cable-beam anchoring structure comprises a fixing frame, the fixing frame is provided with a protection mechanism, the protection mechanism is provided with a protection sleeve, an auxiliary reinforcement component and a protection component, the auxiliary reinforcement component comprises:

[0007] A cylindrical groove, in which a slip ring is slidably connected, and the slip ring is fixedly connected to the outer wall of the protective sleeve. A pressure sensor is embedded and installed in the cylindrical groove, and the slip ring and the pressure sensor are elastically connected through a connecting spring. In the process of the slip ring compressing the connecting spring, the pressure sensor can be subjected to the reaction force of the connecting spring, and then by monitoring the pressure reading of the pressure sensor, the force of each group of inclined steel cables and the cable-beam anchoring structure can be monitored, which is convenient for the subsequent maintenance of the cable-beam anchoring structure;

[0008] A truncated cone groove, in which a pressing block is slidably connected, the pressing block and the truncated cone groove are elastically connected via a pressing spring, a steel rope is fixedly connected to the side of the pressing block away from the pressing spring, and one end of the steel rope away from the pressing block is fixedly connected to the end of the protective sleeve;

[0009] The limiting wheel, the steel rope is slidably connected to the outer surface of the limiting wheel, and the middle part of the limiting wheel is notched, so that the steel rope can be limited by the limiting wheel to ensure the stability of the sliding of the steel rope.

[0010] Preferably, the protection mechanism includes a column anchor box, the cylindrical groove and the conical groove are both opened in the column anchor box, the column anchor box is fixedly connected with an anchor tube, the column anchor box is fixedly connected with a locking sleeve on a side of the column anchor box away from the anchor tube, and the column anchor box is fixedly connected with a fixing plate on a side of the column anchor box away from the anchor tube, and a positioning rod is fixedly connected to the outer wall of the fixing plate, and the positioning rod passes through the limiting wheel and is fixedly connected to the limiting wheel. An auxiliary sealing assembly is provided on the column anchor box. When the protective sleeve slides relative to the column anchor box in a direction away from the positioning rod, the protective sleeve will pull the steel rope to move, and then the steel rope will pull the clamping block to move. Under the limiting action of the conical groove, the two groups of clamping blocks move in the direction of the limiting wheel, so that the two groups of clamping blocks can approach each other, thereby improving the fixing effect of the protective sleeve, thereby preventing the protective sleeve from continuously moving relative to the column anchor box, and improving the anchoring effect of the protective sleeve.

[0011] Preferably, the auxiliary sealing assembly includes a sealing chamber, a piston in the sealing chamber is connected to a piston ring, gas is filled between the piston ring and the sealing chamber, the piston ring and the sealing chamber are elastically connected by a return spring, the piston ring is fixedly connected to a vertical rod on a side away from the return spring, the sealing chamber is connected to a connecting pipe, and the connecting pipe is connected to a sealing bag at one end away from the sealing chamber. Under the action of the return spring, the gas in the sealing chamber can enter the sealing bag through the connecting pipe, so that the sealing bag expands, thereby improving the sealing effect between the protective sleeve and the anchor pipe and preventing the inside of the anchor pipe from being eroded. At the same time, in the process of the clamping block moving toward the direction of the limiting wheel, the clamping block squeezes the vertical rod, and then the vertical rod drives the piston ring to squeeze the return spring to move, so that the gas in the sealing chamber is further squeezed into the sealing bag, and the sealing bag further expands, thereby increasing the friction with the protective sleeve and further improving the fixing effect of the protective sleeve.

[0012] Preferably, the sealing bag is embedded and installed at one end of the anchor pipe away from the column-type anchor box, and the sealing bag is sleeved on the outer wall of the protective sleeve.

[0013] Preferably, an oblique groove is provided on the outer wall of the vertical rod.

[0014] Preferably, the protection component includes an inner groove, which is provided in the column anchor box, and an L-shaped slider is slidably connected in the inner groove, and a cross bar is fixedly connected to the L-shaped slider on the side close to the vertical rod, and a round rod is fixedly connected to the outer wall of the cross bar, and the round rod is slidably connected in the inclined groove. When the L-shaped slider moves in the direction away from the limiting wheel, the L-shaped slider drives the cross bar to move, and then the round rod slides in the inclined groove, so that the vertical rod moves in the direction close to the protective sleeve, and the gas in the sealing bag is sucked into the sealing chamber, and the sealing bag shrinks, so that the protective sleeve is easy to be installed into the anchor pipe.

[0015] Preferably, when the L-shaped sliding block is squeezed by the pressing block to move in a direction away from the vertical rod, the cross rod and the round rod move in a direction away from the vertical rod, and the round rod slides in the inclined groove to pull the vertical rod to move in a direction close to the protective sleeve.

[0016] Preferably, the end of the vertical rod close to the protective sleeve is hemispherical, and an electric push rod is embedded on the inner surface of the column anchor box. The end of the vertical rod close to the protective sleeve is hemispherical, so that the clamping block can squeeze the vertical rod to move during the movement of the clamping block in the direction of the limiting wheel.

[0017] A cable-stayed bridge proposed in the present invention comprises the cable-stayed bridge cable-beam anchoring structure mentioned above.

[0018] Preferably, the cable-stayed bridge further comprises a bridge, the upper side of which is fixedly connected to a bridge tower, an installation groove is provided on the upper side of the bridge, the installation groove matches a fixing frame, a concrete platform is cast in the installation groove, a cable-stayed steel cable is sleeved in the protective sleeve, and the position of the fixing frame is preliminarily adjusted by using the installation groove, and then the position of the protective sleeve on the bridge tower is adjusted, so as to facilitate the passing of the protective sleeve through the bridge tower and improve the installation efficiency of the device.

[0019] The present invention provides a cable-stayed bridge cable-beam anchoring structure and a cable-stayed bridge, which have the following beneficial effects:

[0020] (1) Through the use of protective mechanisms and auxiliary reinforcement components, the stress on each set of inclined steel cables and cable-beam anchoring structures can be monitored, which is convenient for the subsequent maintenance of the cable-beam anchoring structures. At the same time, when the protective sleeve slides relative to the column anchor box in the direction away from the positioning rod, the protective sleeve will pull the steel rope to move, and then the steel rope will pull the clamping block to move. Under the limiting action of the truncated cone groove, the two sets of clamping blocks move in the direction of the limiting wheel, so that the two sets of clamping blocks can approach each other, thereby improving the fixing effect of the protective sleeve, thereby preventing the protective sleeve from continuously moving relative to the column anchor box, and improving the anchoring effect of the protective sleeve.

[0021] (2) The use of the cable-stayed bridge cable-beam anchoring structure and the auxiliary reinforcement assembly and auxiliary sealing assembly of the cable-stayed bridge enables the clamping block to squeeze the vertical rod when it moves in the direction of the limiting wheel, and then the vertical rod drives the piston ring to squeeze the return spring to move, so that the gas in the sealing chamber is further squeezed into the sealing bag, and the sealing bag further expands, thereby increasing the friction with the protective sleeve and further improving the fixing effect of the protective sleeve.

[0022] (3) The use of the cable-stayed bridge cable-beam anchoring structure and the auxiliary reinforcement components, protection components and auxiliary sealing components of the cable-stayed bridge enables the protective sleeve to be installed into the anchor pipe by starting the electric push rod. The output end of the electric push rod can move the clamping block in the opposite direction of the clamping spring, and the L-shaped slider moves away from the limiting wheel, driving the cross bar to move, and then the round rod slides in the inclined groove, causing the vertical rod to move in the direction close to the protective sleeve, sucking the gas in the sealing bag into the sealing chamber, and the sealing bag shrinks, making it easier for the protective sleeve to be installed into the anchor pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of the cable-beam anchorage structure of the cable-stayed bridge of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the cable-beam anchoring structure of the cable-stayed bridge of the present invention;

[0026] Figure 3 It is a schematic diagram of the structure of the protection mechanism of the present invention;

[0027] Figure 4 It is a schematic cross-sectional view of the cable-beam anchoring structure of a cable-stayed bridge according to the present invention;

[0028] Figure 5 For the present invention Figure 4 Schematic diagram of the structure of A;

[0029] Figure 6 It is a schematic cross-sectional view of the protective mechanism of the present invention;

[0030] Figure 7 For the present invention Figure 6 Schematic diagram of the structure of middle B;

[0031] Figure 8 It is a partial structural schematic diagram of the protection component of the present invention;

[0032] Fig. 9 It is a schematic diagram of the overall structure of the cable-stayed bridge of the present invention;

[0033] Fig.10 It is a partial structural schematic diagram of the cable-stayed bridge of the present invention.

[0034] In the figure: 1. fixing frame; 2. protection mechanism; 3. protection sleeve; 4. auxiliary reinforcement component; 5. protection component; 6. bridge; 7. bridge tower; 8. concrete platform; 21. column anchor box; 22. anchor pipe; 23. locking sleeve; 24. fixing plate; 25. positioning rod; 26. auxiliary sealing component; 211. electric push rod; 261. sealing chamber; 262. piston ring; 263. vertical rod; 264. connecting pipe; 265. sealing bag; 2631. inclined groove; 41. cylindrical groove; 42. slip ring; 43. pressure sensor; 44. truncated table groove; 45. clamping block; 46. steel rope; 47. limiting wheel; 51. inner groove; 52. L-shaped slider; 53. cross bar; 54. round rod; 61. installation groove.

[0035] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-Figure 8 The present invention proposes a cable-stayed bridge cable-beam anchoring structure, comprising a fixing frame 1, on which a protection mechanism 2 is arranged, in which a protection sleeve 3, an auxiliary reinforcement component 4 and a protection component 5 are arranged.

[0038] In an embodiment of the present invention, in order to be able to fix the protective sleeve 3, specifically, the protective mechanism 2 includes a column anchor box 21, the cylindrical groove 41 and the truncated cone groove 44 are both opened in the column anchor box 21, the column anchor box 21 is fixedly connected with an anchor pipe 22, the side of the column anchor box 21 away from the anchor pipe 22 is fixedly connected with a locking sleeve 23, the side of the column anchor box 21 away from the anchor pipe 22 is fixedly connected with a fixing plate 24, the outer wall of the fixing plate 24 is fixedly connected with a positioning rod 25, the positioning rod 25 passes through the limiting wheel 47 and is fixedly connected to the limiting wheel 47, the anchor pipe 22 can be composed of two half-pipes through welding, the protective sleeve 3 is first installed into the anchor pipe 22, and then the anchor pipe 22 is locked by the locking sleeve 23, so that the fixing of the protective sleeve 3 can be completed.

[0039] Furthermore, in order to further reinforce the protective sleeve 3 and prevent the protective sleeve 3 from detaching from the anchor pipe 22, specifically, the auxiliary reinforcement component 4 includes a cylindrical groove 41, a conical groove 44 and a limiting wheel 47. A slip ring 42 is slidably connected in the cylindrical groove 41, and the slip ring 42 is fixedly connected to the outer wall of the protective sleeve 3. A pressure sensor 43 is embedded and installed in the cylindrical groove 41. The slip ring 42 and the pressure sensor 43 are elastically connected by a connecting spring. A clamping block 45 is slidably connected in the conical groove 44, and the clamping block 45 is elastically connected to the conical groove 44 by a clamping spring. A steel rope 46 is fixedly connected to the side of the clamping block 45 away from the clamping spring, and one end of the steel rope 46 away from the clamping block 45 is fixedly connected to the end of the protective sleeve 3. The steel rope 46 is slidably connected to the outer surface of the limiting wheel 47, and the middle part of the limiting wheel 47 is notched, so that the steel rope 46 can be limited by the limiting wheel 47 to ensure that the steel rope 46 slides. The dynamic stability is that when the protective sleeve 3 slides relative to the column anchor box 21 in the direction away from the positioning rod 25, the slip ring 42 compresses the connecting spring pressure sensor 43, which can be subjected to the reaction force of the connecting spring, and then by monitoring the pressure reading of the pressure sensor 43, the force on each group of protective sleeves 3 and the cable-beam anchoring structure can be monitored, which is convenient for the subsequent maintenance of the cable-beam anchoring structure. At the same time, when the protective sleeve 3 slides relative to the column anchor box 21 in the direction away from the positioning rod 25, the protective sleeve 3 will pull the steel rope 46 to move, and then the steel rope 46 will pull the clamping block 45 to move. Under the limiting action of the truncated cone groove 44, the two groups of clamping blocks 45 move in the direction of the limiting wheel 47, so that the two groups of clamping blocks 45 can approach each other, thereby improving the fixing effect of the protective sleeve 3, thereby preventing the protective sleeve 3 from continuously moving relative to the column anchor box 21, and improving the anchoring effect of the protective sleeve 3.

[0040] In the embodiment of the present invention, in order to further improve the reinforcement effect of the protective sleeve 3, specifically, an auxiliary sealing assembly 26 is arranged on the column anchor box 21, and the auxiliary sealing assembly 26 includes a sealing chamber 261, a piston in the sealing chamber 261 is connected to a piston ring 262, gas is filled between the piston ring 262 and the sealing chamber 261, the piston ring 262 and the sealing chamber 261 are elastically connected by a return spring, and a side of the piston ring 262 away from the return spring is fixedly connected with a vertical rod 263, and the end of the vertical rod 263 close to the protective sleeve 3 is hemispherical, and the end of the vertical rod 263 close to the protective sleeve 3 is hemispherical, so that the pressing block 45 can squeeze the vertical rod 263 during the movement of the clamping block 45 in the direction of the limiting wheel 47. Movement, the sealing chamber 261 is connected to a connecting pipe 264, and the end of the connecting pipe 264 away from the sealing chamber 261 is connected to a sealing bag 265, and the sealing bag 265 is embedded and installed at the end of the anchor pipe 22 away from the column anchor box 21, and the sealing bag 265 is sleeved on the outer wall of the protective sleeve 3. During the movement of the clamping block 45 in the direction of the limiting wheel 47, the clamping block 45 squeezes the vertical rod 263, and then the vertical rod 263 drives the piston ring 262 to squeeze the reset spring to move, so that the gas in the sealing chamber 261 enters the sealing bag 265 through the connecting pipe 264, and is further squeezed into the sealing bag 265, and the sealing bag 265 further expands, thereby increasing the friction with the protective sleeve 3, and further improving the fixing effect of the protective sleeve 3.

[0041] Furthermore, in order to facilitate the installation of the protective sleeve 3 into the anchor pipe 22, specifically, an oblique groove 2631 is provided on the outer wall of the vertical rod 263, and the protective component 5 includes an inner groove 51, which is provided in the column anchor box 21, and an L-shaped slider 52 is slidably connected in the inner groove 51, and a cross bar 53 is fixedly connected to the side of the L-shaped slider 52 close to the vertical rod 263, and a round rod 54 is fixedly connected to the outer wall of the cross bar 53, and the round rod 54 is slidably connected in the oblique groove 2631. When the L-shaped slider 52 is squeezed by the compression block 45 to move in a direction away from the vertical rod 263, the cross bar 53 and the round rod 54 move in a direction away from the vertical rod 263, and the round rod 54 moves in a direction away from the vertical rod 263. The vertical rod 263 slides in the inclined groove 2631, pulling the vertical rod 263 to move in the direction close to the protective sleeve 3. The inner surface of the column anchor box 21 is inlaid with an electric push rod 211. By starting the electric push rod 211, the output end of the electric push rod 211 can make the clamping block 45 move in the opposite direction of the clamping spring, and the L-shaped slider 52 moves in the direction away from the limiting wheel 47, driving the cross bar 53 to move, and then the round rod 54 slides in the inclined groove 2631, so that the vertical rod 263 moves in the direction close to the protective sleeve 3, and the gas in the sealing bag 265 is sucked into the sealing chamber 261, and the sealing bag 265 shrinks, which facilitates the installation of the protective sleeve 3 into the anchor pipe 22.

[0042] See also Figure 9-10The present invention proposes a cable-stayed bridge, including the cable-beam anchoring structure of the cable-stayed bridge, the cable-stayed bridge also includes a bridge 6, a bridge tower 7 is fixedly connected to the upper side of the bridge 6, an installation groove 61 is opened on the upper side of the bridge 6, the installation groove 61 matches the fixed frame 1, a concrete platform 8 is poured in the installation groove 61, and a cable-stayed steel cable is sleeved in the protective sleeve 3. By using the installation groove 61, the position of the fixed frame 1 is preliminarily adjusted, and then the position of the protective sleeve 3 on the bridge tower 7 is adjusted, which facilitates the protective sleeve 3 to pass through the bridge tower 7 and improves the installation efficiency of the device.

[0043] It should be noted that the above-mentioned electrical components are all existing technology products. Technical personnel in this field select, install and complete the circuit debugging work according to the needs of use to ensure that all electrical appliances can work normally. The components are all universal standard parts or components known to technical personnel in this field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. The applicant does not make specific restrictions here.

[0044] When in use, the protective sleeve 3 is first sleeved on the outside of the inclined steel cable, and then the protective sleeve 3 is installed in the anchor pipe 22, and then the anchor pipe 22 is locked by the locking sleeve 23, and then the fixing frame 1 is placed in the installation groove 61, and the position of the fixing frame 1 is adjusted, and then the fixing frame 1 is fixed, and then the protective sleeve 3 is passed through the bridge tower 7, and after the protective sleeve 3 is fixed, concrete is poured into the installation groove 61 to form a concrete platform 8, so as to achieve stable fixation of the bridge cable beam anchoring structure;

[0045] At the same time, during the process of installing the protective sleeve 3 into the anchor pipe 22, by starting the electric push rod 211, the output end of the electric push rod 211 can move the clamping block 45 in the opposite direction of the clamping spring, and the L-shaped slider 52 moves in the direction away from the limiting wheel 47, driving the cross bar 53 to move, and then the round rod 54 slides in the inclined groove 2631, so that the vertical rod 263 moves in the direction close to the protective sleeve 3, and the gas in the sealing bag 265 is sucked into the sealing chamber 261, and the sealing bag 265 shrinks, thereby assisting the protective sleeve 3 to be installed into the anchor pipe 22.

[0046] When the protective sleeve 3 slides relative to the column anchor box 21 in the direction away from the positioning rod 25, the slip ring 42 compresses the connecting spring pressure sensor 43, which can be subjected to the reaction force of the connecting spring, and then by monitoring the pressure reading of the pressure sensor 43, the force on each group of protective sleeves 3 and the cable-beam anchoring structure can be monitored, which is convenient for the subsequent maintenance of the cable-beam anchoring structure. At the same time, when the protective sleeve 3 slides relative to the column anchor box 21 in the direction away from the positioning rod 25, the protective sleeve 3 will pull the steel rope 46 to move, and then the steel rope 46 will pull the clamping block 45 to move. Under the limiting action of the truncated cone groove 44, the two groups of clamping blocks 45 move in the direction of the limiting wheel 47, so that the two groups of clamping blocks 45 can approach each other, thereby strengthening the fixation of the protective sleeve 3.

[0047] At the same time, when the clamping block 45 moves toward the direction of the limiting wheel 47, the clamping block 45 squeezes the vertical rod 263, and then the vertical rod 263 drives the piston ring 262 to squeeze the reset spring to move, so that the gas in the sealing chamber 261 enters the sealing bag 265 through the connecting pipe 264, and is further squeezed into the sealing bag 265, and the sealing bag 265 further expands, thereby increasing the friction with the protective sleeve 3.

[0048] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A cable-stayed bridge cable-beam anchoring structure, comprising a fixing frame (1), characterized in that: The fixing frame (1) is provided with a protection mechanism (2), the protection mechanism (2) is provided with a protection sleeve (3), an auxiliary reinforcement component (4) and a protection component (5), and the auxiliary reinforcement component (4) comprises: A cylindrical groove (41), a slip ring (42) being slidably connected in the cylindrical groove (41), the slip ring (42) being fixedly connected to the outer wall of the protective sleeve (3), a pressure sensor (43) being embedded and installed in the cylindrical groove (41), and the slip ring (42) and the pressure sensor (43) being elastically connected via a connecting spring; A truncated cone groove (44), a pressing block (45) being slidably connected in the truncated cone groove (44), the pressing block (45) being elastically connected to the truncated cone groove (44) via a pressing spring, a steel rope (46) being fixedly connected to a side of the pressing block (45) away from the pressing spring, and an end of the steel rope (46) away from the pressing block (45) being fixedly connected to an end of the protective sleeve (3); A limiting wheel (47), wherein the steel rope (46) is slidably connected to the outer surface of the limiting wheel (47); The protection mechanism (2) comprises a column-type anchor box (21), the cylindrical groove (41) and the truncated cone groove (44) are both provided in the column-type anchor box (21), an anchor pipe (22) is fixedly connected to the column-type anchor box (21), a locking sleeve (23) is fixedly connected to a side of the column-type anchor box (21) away from the anchor pipe (22), a fixing plate (24) is fixedly connected to a side of the column-type anchor box (21) away from the anchor pipe (22), a positioning rod (25) is fixedly connected to an outer wall of the fixing plate (24), the positioning rod (25) passes through a limiting wheel (47) and is fixedly connected to the limiting wheel (47), and an auxiliary sealing assembly (26) is provided on the column-type anchor box (21); The auxiliary sealing assembly (26) comprises a sealing chamber (261), a piston in the sealing chamber (261) being connected to a piston ring (262), gas being filled between the piston ring (262) and the sealing chamber (261), the piston ring (262) and the sealing chamber (261) being elastically connected via a return spring, a side of the piston ring (262) away from the return spring being fixedly connected to a vertical rod (263), the sealing chamber (261) being connected to a connecting pipe (264), and an end of the connecting pipe (264) away from the sealing chamber (261) being connected to a sealing bag (265); An oblique groove (2631) is provided on the outer wall of the vertical rod (263); The protection assembly (5) comprises an inner groove (51), the inner groove (51) being opened in the column anchor box (21), an L-shaped slider (52) being slidably connected in the inner groove (51), a cross bar (53) being fixedly connected to a side of the L-shaped slider (52) close to the vertical bar (263), a round bar (54) being fixedly connected to an outer wall of the cross bar (53), and the round bar (54) being slidably connected in the inclined groove (2631).

2. The cable-stayed bridge cable-beam anchoring structure according to claim 1, characterized in that: The sealing bag (265) is embedded and installed at one end of the anchor pipe (22) away from the column anchor box (21), and the sealing bag (265) is sleeved on the outer wall of the protective sleeve (3).

3. The cable-stayed bridge cable-beam anchoring structure according to claim 2, characterized in that: When the L-shaped sliding block (52) is squeezed by the pressing block (45) to move in a direction away from the vertical rod (263), the horizontal rod (53) and the round rod (54) move in a direction away from the vertical rod (263), and the round rod (54) slides in the inclined groove (2631) to pull the vertical rod (263) to move in a direction close to the protective sleeve (3).

4. The cable-stayed bridge cable-beam anchoring structure according to claim 3, characterized in that: One end of the vertical rod (263) close to the protective sleeve (3) is hemispherical, and an electric push rod (211) is embedded and installed on the inner surface of the column anchor box (21).

5. A cable-stayed bridge, characterized in that: It comprises the cable-stayed bridge cable-beam anchoring structure as described in claim 4.

6. The cable-stayed bridge according to claim 5, characterized in that: It also comprises a bridge (6), the upper side of the bridge (6) being fixedly connected to a bridge tower (7), the upper side of the bridge (6) being provided with a mounting groove (61), the mounting groove (61) matching the fixing frame (1), a concrete platform (8) being cast in the mounting groove (61), and a cable-stayed steel cable being sleeved in the protective sleeve (3).

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